David Tennant is made of awesome

Fark linked to this video of David Tennant as The Doctor. In one episode ("Family of Blood"), the Doctor must hide from aliens pursuing him, so he converts himself into a human. He leaves instructions for his companion Martha, and in the show we see her listening to them for just a moment, and the volume goes down. We see him talking, but don't know what he's saying. Now we do. This is good stuff. I can't imagine having to do this in front of a camera. It would be very tough. Gotta admit: I though he said "Pez" until I realized it was "pears".